body{
    -webkit-font-smoothing: antialiased;
    background-color: #fff;
    font: 12px/1.5 Microsoft YaHei,Heiti SC,tahoma,arial,Hiragino Sans GB,"\5B8B\4F53",sans-serif;
    color: #666;
}
.iconfont {
    font-size: 3px;
    width: 3px;
    height: 3px;
    line-height: 3px; 
}
.f1{
    float: left;
    list-style: none;
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
   
}
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 30px;
    background: #e3e4e5;
    font-size: 14px;
    box-sizing: border-box;
    padding: 0 30px;
}
ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}
ul li {
    width: 80px;
    height: 29px;
    text-align: center;
    /* 内容显示区 */
    line-height: 29px;
    box-sizing: border-box;
    border: 1px solid transparent;
}
.dropdown{
    text-align: left;
    width: 155px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dropdown-btn:hover {
    background: #fff;
    border: 1px solid #ccc;
    border-bottom: none;
} 
.spacer{
    overflow: hidden;
    margin: 11px 5px 0;
    width: 1px;
    height: 10px;
    background-color: #ccc;
}
.dropdown-btn {
    position: relative;
}
.dropdown-btn:hover .dropdown-menu {
    display: block;
}

.dropdown-btn:hover .line {
    display: block;
}
.line {
    width: 78px;
    height: 1px;
    background: #fff;
    position: absolute;
    top: 28px;
    left: 0;
    z-index: 1;
    display: none;
}
a{
    color: #666;
    text-decoration: none;
}
a:hover{
    color: red;
}
.dropdown-menu {
    position: absolute;
    top: 28px;
    left: -1px;
    width: 300px;
    height: 200px;
    border: 1px solid #ccc;
    background: #fff;
    display: none;
}
.fore1, .fore2{
    float: left;
    width: 115px;
}
.dropdown-layer {
    display: none;
    width: 260px;
    position: absolute;
    left: -1px;
    top: 28px;
    border: 1px solid #ccc;
    background-color: #fff;
    box-shadow: 1px 2px 1px rgb(0 0 0 / 10%);
}
        
.dropdown-btn-company:hover .dropdown-layer {
    display: block;
    width: 180px;
    padding: 10px 0 10px 10px;
    text-align: center;

}
.item {
    display: inline-block;
    width: 56px;
    white-space: nowrap;
    text-align: center;
    padding-top: 10px;
    padding-right: 10px;
}